I made the napkins out of a natural linen fabric and painted red stripes around the bottom edge using a dry brush technique.

I have made several varieties of napkins and towels for my home using this same technique. It is so simple- the only skill required is being able to sew a straight line... actually you don't even need to be able to sew if you can find the napkins pre-made, you can just add the stripes to embellish them.